Type Confusion in Windows Server - CVE-2026-70167
Published: October 14, 2026
Vulnerability identifier: #VU154612
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-70167
CWE-ID: CWE-843
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code.
The vulnerability exists due to type confusion in DNS Server when accessing a resource using an incompatible type. A remote user can exploit the type confusion over a network to execute arbitrary code.
Affected software
Windows Server
How to mitigate CVE-2026-70167
Install security update from vendor's website.
Windows Server - addressed in versions 2022 10.0.20348.5761, 2025 10.0.26100.33650